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RUDIKE [14]
3 years ago
7

1.) Rn-222 decays from 400 grams to 6.25 grams in 240 minutes. How long is one “half-life.

Physics
1 answer:
KiRa [710]3 years ago
7 0

Answer:

40

Explanation:

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length = 1.24m

Explanation:

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w = 343/69 =4.97m

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A california condor is sitting on the top branch of a redwood tree and has a GPE of 12,100 J. If the condor has a mass of 8kg, w
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3 years ago
50 kg of water at 75o C is cooled to 25o C. How much heat was given off?
attashe74 [19]

Answer:

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2 years ago
Electric current passing through a human body can be dangerous, even fatal, depending on the amount of current, the duration of
Sati [7]

Answer:

V for dry skin = 41.83 volts

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Explanation:

The relationship between current and voltage is given as follows by Ohm's Law:

V = IR

where,

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I = Current

R = Resistance

FOR DRY SKIN:

V = Vd = ?

I = 89 μA = 89 x 10⁻⁶ A

R = 4.7 x 10⁵ Ω

Therefore,

Vd = (89 x 10⁻⁶ A)(4.7 x 10⁵ Ω)

<u>Vd = 41.83 volts</u>

FOR WET SKIN:

V = Vw = ?

I = 89 μA = 89 x 10⁻⁶ A

R = 2200 Ω

Therefore,

Vd = (89 x 10⁻⁶ A)(2200 Ω)

<u>Vd = 0.196 volts</u>

7 0
4 years ago
1. Any push or pull is called
timama [110]

Answer:

b  ok

Explanation:

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